Ball Screw, SFU Nut, SFU1204 With BK10+BF10 Set $ 6.64 Product information: Applicable to machine tools: either Specification: 1204-200 1204-250 1204-300 Ball screw is the most commonly used transmission element in machinery. It is composed of screw and nut, and can be matched with nut base, screw support base, coupling, motor and other peripheral parts. Its main function is to convert rotary motion into linear motion, or torque into axial force. Ball screw has the characteristics of high precision, reversibility, high efficiency and low friction resistance, and is widely used in various industrial equipment and precision instruments.